Weapon sigil suggestions for WvWvW

Hi Warrior community! I am currently running a Hammer & Sword/Shield build. I'm farily tanky with over 3200 Armor and just over 23,000 HP. I run a Shout build. I'm looking for suggestions on Sigils for my weapons. I currently use:

Would I be better served getting rid of the Sigils of Blood and swapping for Sigil of Fire perhaps? I've also considered Sigil of Battle on my sword. It's hard to tell if the sigils of blood really are effective at helping me stay alive, so I'd like help with a few other opinions out there. Thanks for the assistance.